Abstract
Using conductive and piezoforce microscopy, we reveal a complex picture of electronic transport at weakly conductive 109° domain walls in bismuth ferrite films. Even once initial ferroelectric stripe domains are changed/erased, persistent conductive paths signal the original domain wall position. The conduction at such domain wall “footprints” is activated by domain movement and decays rapidly with time, but can be re-activated by opposite polarity voltage. The observed phenomena represent true leakage conduction rather than merely displacement currents. We propose a scenario of hopping transport in combination with thermionic injection over interfacial barriers controlled by the ferroelectric polarization.
References
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See supplementary material at http://dx.doi.org/10.1063/1.4869851 for further experimental details.
(
10.1063/1.4869851
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Dates
Type | When |
---|---|
Created | 11 years, 4 months ago (April 1, 2014, 8:22 a.m.) |
Deposited | 2 years, 2 months ago (June 18, 2023, 12:26 a.m.) |
Indexed | 2 weeks, 5 days ago (Aug. 2, 2025, 12:33 a.m.) |
Issued | 11 years, 4 months ago (March 31, 2014) |
Published | 11 years, 4 months ago (March 31, 2014) |
Published Online | 11 years, 4 months ago (March 31, 2014) |
Published Print | 11 years, 4 months ago (March 31, 2014) |
@article{Stolichnov_2014, title={Persistent conductive footprints of 109° domain walls in bismuth ferrite films}, volume={104}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4869851}, DOI={10.1063/1.4869851}, number={13}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Stolichnov, I. and Iwanowska, M. and Colla, E. and Ziegler, B. and Gaponenko, I. and Paruch, P. and Huijben, M. and Rijnders, G. and Setter, N.}, year={2014}, month=mar }